What are the symptoms of a faulty BMW electric water pump?

[DiLeila]

BMW's electric water pump failure can directly lead to engine overheating, even failure to start, and a warning light will appear on the dashboard. Many BMW models use electric water pumps, which do not rely on the engine to drive them. Instead, the electric water pump is directly driven by an electric motor, so it does not consume engine power. Below are the specific symptoms of a faulty electric water pump: 1. High water temperature: The car's cooling circulation capacity weakens or even stops, leading to high water temperature, especially noticeable in southern summers. 2. Water pump leakage: Coolant leaks near the water pump area. Leaking coolant leaves traces of coolant color on the water pump's ventilation holes, resulting in symptoms like high water temperature due to insufficient coolant. 3. Abnormal noise from the water pump: The water pump produces unusual noises when the engine is running, which may be subtle and difficult to detect.